Регистры H616: I2Sn DMA & Interrupt Status

I2Sn_IRQ_STS

8.1.6. I2Sn DMA & Interrupt Status - адрес: 0x22c50a7003 (смещение: 0x022C+n*0x0100(n = 0~3))

31 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 16
15 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 00

Unused

Bits 31 : 2

RXNO_INT

Bit 1
R/W1C
0x0

RX FIFO Overrun Pending Interrupt
0: No Pending Interrupt
1: RXFIFO Overrun Pending Interrupt
Write 1 to clear this interrupt

TXNU_INT

Bit 0
R/W1C
0x0

TX FIFO Underrun Pending Interrupt
0: No Pending Interrupt
1: TXFIFO Underrun Pending Interrupt
Write 1 to clear this interrupt

Команда U-Boot для чтения регистра

md 22c50a7003 1

typedef union i2sn_irq_sts { struct { unsigned txnu_int : 1; unsigned rxno_int : 1; unsigned unused0 : 30; } b; unsigned long w; } I2Sn_IRQ_STS